volcanics火山岩volcanicadj.火山的；猛烈的volcanic eruptible period火山喷发期次volcanic rock oil deposit火山岩油藏volcanic sedimentary rock火山沉积岩volcanic- sedimentation火山-沉积作用Volcanic monitoring system火山监测系统volcanic-sedimentry rock火山沉积岩volcanic ashes archaeology火山灰考古volcanic rock geochemistry火山岩地球化学volcanic cascade deposition火山喷流沉积volcanic mud--rock flow火山泥石流